If it helps anything, the redhead I've seen is in a hardcore scene where she is pregnant. The scene isn't longer than 5 minutes and her tits look very different (less fake), but by the face and hair I can definitely tell it's the same woman.
"pregnant-red-haired-female-shows-her-urgent-need-for-tender-sex" is what you should google and the first links are what I'm talking about.